Finding the Fourth Proportional to 152,384.20, 212,813 and 152,384.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,384.20 : 212,813 = 152,384.20 : x
2. Step 2: Convert to fraction form
   152,384.20/212,813 = 152,384.20/x
3. Step 3: Cross multiply
   152,384.20x = 212,813 × 152,384.20
4. Step 4: Simplify right side
   152,384.20x = 32,429,338,754.60
5. Step 5: Solve for x
   x = 32,429,338,754.60/152,384.20
6. Step 6: Final answer
   x = 212,813